Помогите crazy auctions не работает

При вводе /ah sell (цена)

[20:45:16] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'ah' in plugin CrazyAuctions v1.2.15-RELEASE
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at org.bukkit.craftbukkit.v1_16_R1.CraftServer.dispatchCommand(CraftServer.java:755) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.PlayerConnection.handleCommand(PlayerConnection.java:1703) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.PlayerConnection.a(PlayerConnection.java:1546) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.TickTask.run(SourceFile:18) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.executeTask(SourceFile:144) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.executeNext(SourceFile:118) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.MinecraftServer.aZ(MinecraftServer.java:943) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.MinecraftServer.executeNext(MinecraftServer.java:936) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.IAsyncTaskHandler.awaitTasks(SourceFile:127) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.MinecraftServer.sleepForTick(MinecraftServer.java:920) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.MinecraftServer.v(MinecraftServer.java:852) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at net.minecraft.server.v1_16_R1.MinecraftServer.lambda$0(MinecraftServer.java:164) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_231]
Caused by: java.lang.NullPointerException
at me.badbones69.crazyauctions.api.CrazyAuctions.getItems(CrazyAuctions.java:67) ~[?:?]
at me.badbones69.crazyauctions.Main.onCommand(Main.java:284) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[spigot-1.16.1.jar:git-Spigot-0287a20-7560f5f]
... 18 more

Менюшка работает.
spigot 1.16.1